<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="../vue.js"></script>
  </head>
  <body>
    <div id="app">
        <!-- v-bind强制绑定,属于单向数据绑定 -->
        <input type="text" :value="value" /><br />

        <!-- 数据双向绑定,互相监听 -->
        <input type="text" v-model="value"><br />
    </div>

    <script>
      Vue.config.productionTip = false;

      const vm = new Vue({
        el: "#app",
        data() {
          return {
            value: "hello",
          };
        },
      });
    </script>
  </body>
</html>
